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/*
========== licence begin GPL
Copyright (C) 2002-2003 SAP AG
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
========== licence end
*/
package com.sap.dbtech.util;
import java.io.*;
import com.sap.dbtech.jdbc.translators.ConversionExceptionSapDB;
/**
*
*/
public interface StructuredMem
{
/**
*
* @return byte[]
* @param offset int
* @param len int
*/
public abstract byte[]
getBytes (
int offset,
int len);
/**
* Read a signed one byte integer from <i>offset</i>
* @return byte
* @param offset int
*/
public abstract byte
getInt1 (
int offset);
/**
* Read a unsigned one byte integer from <i>offset</i>
* @return int
* @param offset int
*/
public abstract int
getUInt1 (
int offset);
/**
* Read a signed two byte integer from <i>offset</i>
* @return int
* @param offset int
*/
public abstract int
getInt2 (
int offset);
/**
* Read a signed four byte integer from <i>offset</i>
* @return int
* @param offset int
*/
public abstract int
getInt4 (
int offset);
/**
*
* @return com.sap.dbtech.util.StructuredMem
* @param offset int
*/
public abstract StructuredMem getPointer (int offset);
/**
*
* @return java.lang.String
* @param offset int
* @param len int
*/
public abstract String
getString (
int offset,
int len);
/**
*
* @return byte[]
* @param offset int
* @param len int
*/
public abstract byte []
getStrippedBytes (
int offset,
int len);
/**
*
* @param offset int
* @param len int
*/
public abstract String
getStrippedString (
int offset,
int len);
public byte [] getStrippedUnicodeString (
int offset,
int len);
/**
* reads a bigendian unicode character from <i>offset</i>
*
* @param offset
*
* @return char
*/
public abstract char
getBigUnicodeChar (
int offset);
/**
* converts <i>lenInBytes</i> bytes
* into <i>lenInBytes</i> chars.
*
* @param offset
*
* @param lenInBytes
*
* @return char []
*/
public abstract char []
getBigUnicode (
int offset,
int lenInBytes);
/**
*
* @param offset int
*/
public abstract void moveBase (int offset);
/**
*
* @param value byte[]
* @param offset int
*/
public abstract void
putBytes (
byte [] value,
int offset);
/**
*
* @param value byte[]
* @param offset int
* @param len int
*/
public abstract void
putBytes (
byte [] value,
int offset,
int len);
/**
*
* @param value byte[]
* @param offset int
* @param len int
*/
public abstract void
putStringBytes (
byte [] value,
int offset,
int len);
/**
*
* @param value byte[]
* @param offset int
* @param len int
*/
public abstract void
putUnicodeBytes (
byte [] value,
int offset,
int len);
/**
*
* @param value char[]
* @param offset int
* @param len int
*/
public abstract void
putBigUnicode (
char [] value,
int offsetInBytes,
int lenInBytes);
/**
* Write a signed one byte integer at <i>offset</i>
* @param value int
* @param offset int
*/
public abstract void
putInt1 (
int value,
int offset);
/**
* Write a signed two byte inter at <i>offset</i>
* @param value int
* @param offset int
*/
public abstract void
putInt2 (
int value,
int offset);
/**
* Write a signed four byte integer at <i>offset</i>
* @param value int
* @param offset int
*/
public abstract void
putInt4 (
int value,
int offset);
/**
*
* @param value java.lang.String
* @param offset int
*/
public abstract int
putString (
String value,
int offset);
/**
*
* @return int
* @param value java.lang.String
* @param offset int
* @param len int
*/
public abstract int
putString (
String value,
int offset,
int len);
/**
*
* @return int
*/
public abstract int size ();
/**
*
* @param outstream java.io.Writer
*/
public abstract void
traceOn (
PrintStream outstream);
/**
*
* @param outstream Writer
* @param from int
* @param to int
*/
public abstract void
traceOn (
PrintStream outstream,
int maxBuf);
/**
*
* @param outstream Writer
* @param from int
* @param to int
*/
public abstract void
traceOn (
PrintStream outstream,
int from,
int to);
/**
* @param offset
* @return
*/
public abstract long getInt8(int offset);
/**
* @param lval
* @param offset
*/
public abstract void putInt8(long lval, int offset);
public abstract int putStringThrowExc (
String value,
int offset) throws ConversionExceptionSapDB;
}
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